READ ME file for �HC�HA+ROS manuscript translocation MW data.xlsx�1. This spreadsheet lists molecule-by-molecule molecular weight (MW) values (in kDa) for all hyaluronan (HA) analyses from the manuscript �A role for heavy chain-modification in protecting hyaluronan from free radical fragmentation during inflammation�, as determined by internally-calibrated solid-state nanopore (SSNP) measurements 2. The first sheet (�Main figures�) provides data from all figures in the main manuscript (Figures 1-4) and the second sheet (�Supplemental figures�) provides data from all figures in the Supplementary Information (Supplementary Figures S1-5)3. Each column heading indicates the figure (and subfigure) designation of the data. Where multiple data sets are featured in a single plot, the column heading also indicates the specific sample4. In instances where the same data is plotted in multiple figures, it is repeated as appropriate